The 'Toolbox' Icon that can be found on Orbitron's "Main" tab, leads to
a further set of tabs. One of them is called "Miscellaneous".
The bottom right hand panel of the Miscellaneous tab allows you to set
the directory that will be used for element sets. If you also tick the
box marked "Personal TLE directory", it will automatically store
Spacetrack, Celestrak, element sets there too rather than under the
Orbitron directory in Windows/Program Files.
The directory you choose can be anywhere you choose such as under "My
Documents" or the equivalent in later Windows versions.
Bob Christy